Beto7333

10mm screw behind the door handle, and a philips screw on the outside of the door panel. I removed both of these and it gave me enough room to pull the sweeps without removing the whole panel. 
 
The back window was a pain. Easy shrink once you get the pattern cut out. The wiper mount is in the middle of the pattern on the bottom, and the top of the window meets right up to the spoiler with no room to cut around the border. When I get another I'll be removing the spoiler.

We use a Graphtec 8600 and Clean Cut 25 Degree blades.  Our speed is set on 35 and the force is set on 16.  Blade depth set accordingly.  I have seen your issues on plotters before.  Usually the problem was a bad blade holder.  The blade holder not letting the blade spin freely. Your problem could also be caused by the cutting head being loose on the cutter.  Cut strips always come into play as well.  Just make sure there are no big grooves in the cut strip, if so, replace.  Good luck.  

New Teflon cutting strip. Clean channel with brake parts cleaner prior to laying strip in. Make sure strip is level (some you buy or have get high spots from sitting). Warm, not hot with a heat gun and run finger covered with paper towel all the way to the en will let you know it is secured. I change strips once every two years. Don’t pounce thru the strip or have high spots and you are golden. Most people make the mistake of polling the old one off and laying the new one. The old one leaves adhesive in the channel and causes high spots. Like leaving glue on a window and tinting it.